/**
* @dataProvider validInferQTIVersionProvider
*/
public function testInferQTIVersionValid($file, $expectedVersion)
{
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->load($file);
$this->assertEquals($expectedVersion, Utils::inferQTIVersion($dom));
}
protected function loadImplementation($data, $validate = false, $fromString = false)
{
try {
$this->setDomDocument(new DOMDocument('1.0', 'UTF-8'));
$this->getDomDocument()->preserveWhiteSpace = false;
// disable xml warnings and errors and fetch error information as needed.
$oldErrorConfig = libxml_use_internal_errors(true);
$loadMethod = $fromString === true ? 'loadXML' : 'load';
$doc = $this->getDomDocument();
if (call_user_func_array(array($doc, $loadMethod), array($data, LIBXML_COMPACT | LIBXML_NONET | LIBXML_XINCLUDE))) {
// Infer the QTI version.
if (($version = XmlUtils::inferQTIVersion($this->getDomDocument())) !== false) {
$this->setVersion($version);
} else {
$msg = "Cannot infer QTI version. Is it well formed?";
throw new XmlStorageException($msg);
}
if ($validate === true) {
$this->schemaValidate();
}
try {
// Get the root element and unmarshall.
$element = $this->getDomDocument()->documentElement;
$factory = $this->createMarshallerFactory();
$marshaller = $factory->createMarshaller($element);
$this->setDocumentComponent($marshaller->unmarshall($element));
} catch (UnmarshallingException $e) {
$line = $e->getDOMElement()->getLineNo();
$msg = "An error occured while processing QTI-XML at line {$line}.";
throw new XmlStorageException($msg, $e);
} catch (RuntimeException $e) {
$msg = "Unmarshallable element '" . $element->localName . "' in QTI-XML.";
throw new XmlStorageException($msg, $e);
}
} else {
$libXmlErrors = libxml_get_errors();
$formattedErrors = self::formatLibXmlErrors($libXmlErrors);
libxml_clear_errors();
libxml_use_internal_errors($oldErrorConfig);
$msg = "An internal occured while parsing QTI-XML:\n{$formattedErrors}";
throw new XmlStorageException($msg, null, new LibXmlErrorCollection($libXmlErrors));
}
} catch (DOMException $e) {
$line = $e->getLine();
$msg = "An error occured while parsing QTI-XML at line {$line}.";
throw new XmlStorageException($msg, $e);
}
}
